| Proposal ID | 090439 |
| Title | The Hunt for New ULX Pulsars: Transient and Highly Variable ULXs |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0904390101 |
| DOI | https://doi.org/10.57780/esa-0sfalps |
| Principal Investigator, PI | Mr Angus Duncan MacKenzie |
| Abstract | Following a series of remarkable recent discoveries, we now know that some ofthe most luminous members of the ultraluminous X-ray source (ULX) population areactually powered by highly super-Eddington neutron star accretors. However, keyquestions remain about these remarkable systems, and few ULX pulsars are known.Those that are appear to commonly show higher amplitude variability on longtimescales than other ULXs. Here, we propose using this property to search fornew ULX pulsars, using Swift to monitor four nearby galaxies rich in ULXs andtriggering up to two XMM-Newton observations on luminous transients and/orvariable ULXs when they are sufficiently bright that we can perform acceleratedpulsation searches. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2024-03-20T21:28:43Z/2024-03-21T12:07:53Z |
| Version | 21.23_20231215_1101 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2025-04-16T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Angus Duncan MacKenzie, 2025, 'The Hunt for New ULX Pulsars: Transient and Highly Variable ULXs', 21.23_20231215_1101, European Space Agency, https://doi.org/10.57780/esa-0sfalps |